Mowing-machine.



No. 639,335. Patented Dec. I9, 1899. J. A. ALLEN.

MUWING MACHINE.

(Application filed June 8, 1899.|

(No Model.)

awmyvlioz UNITED STATES MOWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 639,335, dated December 19, 1899.

Application filed June 8, 1899. Serial No. 719,819. (No model.)

To all whom it may concern:

Be it known that I, JOHN AOKLAND ALLEN,

' a citizen of the United States of America, and

aresident of Harper, in the county of Harper and State of Kansas, have invented certain new and useful Improvements in Mowing- Machines, of which the following is a specification.

My invention consists in the peculiar construction and combination of devices that will be more fully set forth hereinafter and particularly pointed out in the claim.

The object of my invention is to provide cutting mechanism for a mowing-machine which will be of maximum efficiency and the speed of the sickle-bars of which when in full operation will be greatly reduced, thereby enhancing the durability of the cutting mechanism and correspondingly reducing the liability to break down.

, In the accompanying drawings, Figure 1 is a perspective view of the cutting apparatus of a mowing-machine embodying my improvements. Figs. 2 and 3 are detail views.

The pitman A, which is actuated in the usual manner by a suitable gear connected to the side of the mowing-machine, is connected directly to the lower sickle-bar E. The said sickle-bar E has at its inner end an extension or arm c, having a cog-rack e on its upper side. The upper sickle-bar F is provided at its inner end with a raised inwardlyextending arm f, on the under side of which is a cog-rack f.

A guide-plate B is bolted to the bed 0, as

'at G, and bears against the front side of the extensions or arms of the sickle-bars, and a guide-plate H, which is bolted also to the bed, as at I, bears against the rear side of the said extensions or arms of the sickle-bars, said plate H having an overlapping flange or wing K, which bears upon the arm f of the upper sickle-bar, the function of these guide-plates being to confine the inner extensions or arms of the sickle-bars to form guides therefor and to incase them. In the case thus formed between the guide-plates is located a pinion L, which is provided with a shaft M, said shaft being mounted in bearings N, formed in the guide-plate. The said pinion meshes both into the cog-rack f of theupper sickle-bar one-half without impairing their efficiency as compared with the mowing-machines in which only one sickle-bar is employed, the teeth or cutter-plate of which operate in connection with stationary fingers projecting from a finger-bar.

A common defect of mowing-machines of the class which have only one sickle-bar is that the said sickle-bar is necessarily operated at such speed as to greatly heighten the liability of its breaking down .or getting out of order.

Having thus described my invention, I

claim a The combination, in the cutting apparatus of a mowing-machine, of the bed (J, the upper sickle-bar having the raised inwardly-extending armfat its inner end, and the cog-rack f on the lower side of said arm, the lower sickle-bar having the extending arm e at its inner end, provided with the cog-rack e on its upper side; the guide-plates B,H, bolted to the bed and arranged on the front and rear sides of the said arms 6, f, said plate H having the wing K bearing on the said arm f, and said plates serving to incase the said arms or extensions; and the pinion L located in the case formed between the guide-plates, and engaging the said cog-racks of said arms e, f, the said pinion having the shaft M mounted in bearings formed in the guide-plates, and the pitman A connected to arm or extension 6, substantially as described.

Signed at Harper, in the county of Harper, State of Kansas, this 24th day of April, 1899, in the presence of two subscribing witnesses.

JOHN ACKLAND ALLEN.

Witnesses:

L. P. COLEMAN, W. G. Mum. 

